Just before 10:30 p.m, Pittsburgh Police from Zone 1 responded for reports of gunfire in the area of 255 E. Ohio Street.
At the same time, a male victim with a gunshot wound to the back arrived at the hospital in critical condition after he flagged down a passing vehicle for help.
Officers recovered three firearms from two scenes located at E. Ohio Street. An adult male and a juvenile male were taken to headquarters for questioning by Major Crimes detectives.
The Mobile Crime Unit processed evidence.
The investigation is ongoing.